Re[2]: [cgmo-webcgm] Highlight test

[Benoit Bezaire <benoit@itedo.com>]

I'm not so sure about this. After a quick look at our implementation,
I don't believe highlight is implemented as an Style Property.

As far as I can see, we agreed that highlighting is a 2 state system;
on or off (i.e., the API has two states: true or false). If we wanted
a Style Property like behavior we need three states (true, false,
inherit).

So in that particular test file, the code is trying to remove a
highlight which was never implicitly set.

I also think that the DOM behavior and the Object behavior should
match. I don't see anything with regards to inheritance of
highlighting in the object behavior section:
http://docs.oasis-open.org/webcgm/v2.0/WebCGM20-IC.html#webcgm_3_1_2_4

I'm not convinced there's a need to have highlight behave like a Style
Property... Those are my thoughts, feel free to comment.

-- 
Regards,
 Benoit   mailto:benoit@itedo.com

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Tuesday, May 30, 2006, 7:22:52 PM, Lofton Henderson wrote:

> My opinion: the behaviors should be as you specify, and "yes", in
> Step 2 C and D should no longer be highlighted.

> If "highlight" were a Style Property, then that would definitely
> happen, according to the SP rules in 5.7.5 and the SP inheritance
> definitions in 5.4.

> But highlight() is a method, that can be applied to a collection of
> nodes (instead of just one at a time like setStyleProperty). I have
> always assumed it behaved like a Style Property, but I can't find
> where it actually says that in the spec. I would think some pretty
> bizarre things would happen if highlight() did not inherit like a
> SP.

> Does anyone think that highlight() doesn't behave as if it were a SP
> that is applied to a list of nodes instead of just one node at a
> time?

> -Lofton.


> At 02:25 PM 5/29/2006 -0700, Galt, Stuart A wrote:
>>Hello,
>>
>>Attached is an incomplete test for Picture-highlight but I wanted to
>>get some comments before it becomes part of the testsuite.
>>
>>The CGM chosen for the test has nested objects.  A contains B that
>>contains C that contains D.
>>
>>Step 1:  Sets the highlight on B to true.
>>Step 2:  Sets the highlight on C to false.
>>Step 3:  Sets the highlight on A to true.
>>Step 4:  Sets the highlight on A to false.
>>
>>In Step 1 I would expect B,C&D to highlight (B contains C and D).
>>In Step 2 should C and D be no longer highlighted?
>>
>>I will make the PNG that goes with the test when I get back to
>>Seattle next week.  I would be interested in hearing what the
>>results of Step 2 should be.
>>
>>Thanks.
>>
>>--
>>Stuart Galt
>>SGML Resource Group
>>stuart.a.galt@boeing.com
>>(206) 544-3656